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Simplifying 7x * 7x = -21 Reorder the terms for easier multiplication: 7 * 7x * x = -21 Multiply 7 * 7 49x * x = -21 Multiply x * x 49x2 = -21 Solving 49x2 = -21 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Divide each side by '49'. x2 = -0.4285714286 Simplifying x2 = -0.4285714286 Reorder the terms: 0.4285714286 + x2 = -0.4285714286 + 0.4285714286 Combine like terms: -0.4285714286 + 0.4285714286 = 0.0000000000 0.4285714286 + x2 = 0.0000000000 The solution to this equation could not be determined.
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